학술논문
X-ray photoemission studies of BiInO3: Surface termination and effective Debye temperature.
Document Type
Article
Author
Source
Subject
*DEBYE temperatures
*PHOTOEMISSION
*PHOTOELECTRON spectroscopy
*INDIUM oxide
*BINDING energy
*THIN films
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Language
ISSN
0021-8979
Abstract
BiInO3 is a potentially polar oxide with distinct optical properties whose origin could result from a surface that has not been well characterized. The surface properties of BiInO3 thin films have been characterized here by temperature dependent angle-resolved x-ray photoemission spectroscopy. A large surface to bulk core-level binding energy shift for the In 3d5/2 core-level is identified, indicating a surface very different from the bulk. BiInO3 terminates in indium oxide and loses bismuth from the surface of the film at T = 573 K. The Debye–Waller plots suggest effective Debye temperatures of 263 ± 10 and 556 ± 27 K for the surface and bulk components of In 3d core-level, respectively. [ABSTRACT FROM AUTHOR]